Hi ((Numpty)) - pleased don't feel embarrassed and you're not alone in your habits. You're brave for admitting this problem. Do you have a therapist or been officially diagnosed with anything? This is called 'Dermatillomania' and is a sub cluster under OCD. Please consult a knowledgable doctor who can outline the best treatment for you. Be careful not to over wash those areas because it could irritate it even more. Use warm water and be gentle. Here's an excellent website with a great deal of information. You're not alone and please get help for this.

http://www.skinpick.com/